Alert archive / Iowa / Flash Flood Warnings in 1991
Flash Flood Warning 16, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 14, 1991, 11:26 PM CDT for Bremer County, Chickasaw County, Fayette County, Iowa. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 14, 1991, 11:26 PM CDT (04:26 UTC)
- Expired
- Jun 15, 1991, 3:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Bremer County, IA, Chickasaw County, IA, Fayette County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 4.4 hours before the alert went out and 246 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 807 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:37 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw | 33 min |
| Jun 14, 7:37 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 68 min |
| Jun 14, 8:07 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 68 min |
| Jun 14, 8:43 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 47 min |
| Jun 14, 9:25 PM CDT | Severe Thunderstorm Warning | DMX | Buena Vista | 50 min |
| Jun 14, 9:47 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 43 min |
| Jun 14, 10:04 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 41 min |
| Jun 14, 10:13 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 47 min |
| Jun 14, 10:15 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 24 min |
| Jun 14, 10:41 PM CDT | Severe Thunderstorm Warning | DMX | Story | 44 min |
| Jun 14, 11:26 PM CDT | Flash Flood Warning | DMX | Cerro Gordo, Floyd | 4 hr |
| Jun 15, 12:21 AM CDT | Tornado Warning | DMX | Bremer | 39 min |
Nearby
Flash Flood Warnings in Iowa, 1991Every flash flood warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.